effective

Definitions

Successful in producing a desired or intended result.

Operative or functioning in practice; actual.

Impressive or striking in appearance or effect.

Examples

The new policy proved to be highly effective in reducing office waste.

Regular exercise is an effective way to improve your overall health.

Synonyms

efficient productive successful potent efficacious capable compelling

Antonyms

ineffective useless inefficient futile unproductive incompetent weak